Yucca Gloriosa - Mound-lily yucca is an erect evergreen shrub with swordlike leaves about 2 in wide and 2-3 ft long originating from a basal rosette. The leaves are bluish or grayish green with smooth margins and pointed tips. They tend to bend near the middle and arch downward. In summer mound-lily yucca puts up a showy 6-8 ft (1.8-2.4 m) spike of fragrant flowers that are white with purplish tinges, pendant and about 3 in across. Mound-lily yucca stays in a stemless rounded clump